Uncover the world of stocks with Polygon.io. This category opens the gateway to a rich repository of data on stock markets, including company data, and real-time updates.
Knowledge Base/Stocks
Knowledge Base
Stocks
- Title
- Does Polygon offer dark pool data?
- Data Coverage Category
Data Coverage
- Stocks Category
Stocks
- Description
- Yes, we provide dark pool data. If a trade comes through with an exchange ID of 4 (exchange:4) and also has an attached “trf_id” field, it came from a dark pool.
- Title
- Does Polygon offer pre-market and after-hours data?
- FAQ Category
FAQ
- Stocks Category
Stocks
- Description
- Yes, we provide data for every trade that occurs, including during pre-market and after-hours. Our tick-level market data streams during these extended hours as well.
- Title
- How does Polygon create the OHLCV (open, high, low, close, volume) aggregate bars?
- Aggregates Category
Aggregates
- FAQ Category
FAQ
- Stocks Category
Stocks
- Description
- Polygon uses the “Sale Conditions” attached to each trade to determine if that trade is eligible to update the aggregate
- Title
- Where does Polygon’s Stock data come from?
- Data Coverage Category
Data Coverage
- FAQ Category
FAQ
- Stocks Category
Stocks
- Description
- Polygon sources its U.S. stock market data from venues including the Securities Information Processors (SIPs), which consolidate quotes and trades from all exchanges, direct connections to major U.S. stock exchanges, FINRA Trading Facilities for off-exchange trades, the OTC Reporting Facility, Alternative Trading Systems (ATSs), and other data sources.
- Title
- Does Polygon have an endpoint that returns the latest trades, quotes and aggregates in one request?
- Aggregates Category
Aggregates
- Data Coverage Category
Data Coverage
- Stocks Category
Stocks
- Description
- Yes, we have a group of endpoints called Snapshots that return a ‘snapshot’ of the market for a single ticker, a group of tickers, or all tickers on the market.
- Title
- Does Polygon offer any technical indicators?
- Data Coverage Category
Data Coverage
- Reference Data Category
Reference Data
- Stocks Category
Stocks
- Description
- Yes, Polygon offers RESTful endpoints for four of the most common technical indicators.
- Title
- Does Polygon Offer International Data?
- Data Coverage Category
Data Coverage
- Stocks Category
Stocks
- Description
- No, we currently only support US markets, but we plan on branching out into international markets in the future.
- Title
- Does Polygon offer Level 2 data?
- Crypto Category
Crypto
- Data Coverage Category
Data Coverage
- Stocks Category
Stocks
- WebSockets Category
WebSockets
- Description
- No, we currently do not provide level 2 market depth information for stocks.
- Title
- Does Polygon provide the filing date for any financial reports?
- Data Coverage Category
Data Coverage
- Financials Category
Financials
- Reference Data Category
Reference Data
- Stocks Category
Stocks
- Description
- Yes, we provide 10K and 10Q financial reports for all US-based companies through our Stock Financials endpoint. We source this data directly from the SEC Edgar database.
- Title
- How can I get the daily prices for all stocks using Polygon’s market data?
- Aggregates Category
Aggregates
- Stocks Category
Stocks
- Description
- You can use our Grouped Daily endpoint to get a list of all daily aggregates for each ticker on the market. The Grouped Daily endpoint returns the daily open, high, low, and close (OHLC) values for every ticker in the stocks/equities markets.
- Title
- How does Polygon handle ticker changes and acquisitions?
- FAQ Category
FAQ
- Reference Data Category
Reference Data
- Stocks Category
Stocks
- Description
- Our market data is point-in-time, meaning the data is returned as it happened on a specific date.
- Title
- How much historical data does Polygon have for financial 10K and 10Q reports?
- Financials Category
Financials
- Reference Data Category
Reference Data
- Stocks Category
Stocks
- Description
- In 2009, the SEC (Securities and Exchange Commission) mandated that all financial 10K and 10Q filings must be filed in XBRL (eXtensible Business Reporting Language) format
- Title
- How much historical stock data does Polygon have?
- Data Coverage Category
Data Coverage
- Stocks Category
Stocks
- Description
- We offer historical tick-level data for stocks dating back to 2004. This includes tick-level trades, NBBO (National Best Bid and Offer) quotes, and custom aggregates with a resolution of 1 second.
- Title
- Is Polygon’s stock data adjusted for splits or dividends?
- FAQ Category
FAQ
- Stocks Category
Stocks
- Description
- Yes, we support historical market data that is both adjusted and unadjusted for splits.
- Title
- Stock Trade Conditions
- Stocks Category
Stocks
- Description
- Stock Trade Conditions
- Title
- What are pro and non-pro classifications for Polygon’s stock data?
- Business Category
Business
- FAQ Category
FAQ
- Stocks Category
Stocks
- Description
- For our real-time Stocks plan for individuals, the SIPs require that we collect and maintain personal information and employment information to classify market data subscribers as either non-professional or professional based on usage and registration status.
- Title
- What are the different types of dividends that Polygon supports?
- Reference Data Category
Reference Data
- Stocks Category
Stocks
- Description
- We include four different types of dividends in our data: regular dividends that are paid and/or expected to be paid on a consistent schedule (CD), special cash dividends that are infrequent or unusual and may not be expected to occur in the future (SC), long-term capital gain distributions (LT), and short-term capital gain distributions (ST).
- Title
- What are the different types of tickers that Polygon supports?
- Data Coverage Category
Data Coverage
- Stocks Category
Stocks
- Description
- When investors think of stocks, they typically think of publicly listed shares of a company traded on a stock exchange.
- Title
- What does Polygon use for Sector?
- Reference Data Category
Reference Data
- Stocks Category
Stocks
- Description
- We use the Standard Industrial Classification (SIC) code to provide sector information.
- Title
- What is the difference between weighted shares outstanding and share class shares outstanding?
- Reference Data Category
Reference Data
- Stocks Category
Stocks
- Description
- Outstanding shares refer to the stock currently held by investors, including shares held by the public and restricted shares owned by company officers and insiders.
- Title
- What symbols/exchanges are included in Polygon’s data?
- Data Coverage Category
Data Coverage
- Options Category
Options
- Stocks Category
Stocks
- Description
- We support the entire US equities market as well as the entire US options market.
- Title
- Why are ticker symbols with dashes ‘-’ not showing in Polygon’s system? Example - BRK-A
- FAQ Category
FAQ
- Reference Data Category
Reference Data
- Stocks Category
Stocks
- Description
- We use the same ticker symbol layout as the SIPs. For any ticker symbol that has a “-” dash, we replace that with a “.” dot.
- Title
- Why does volume return as a FLOAT value from the Aggregates Endpoint?
- FAQ Category
FAQ
- Stocks Category
Stocks
- Description
- These decimal values are entirely normal when requesting adjusted data for stocks that have split.
